Stump-cutting machine



(No M06161. 2 SheBtS-r-Sheet 1.

J. WENDL.

STUMP CUTTING MACHINE. v No.559,241. Patented Apr. 28, 1896. 4

' TOR A TTORNE).

(No Model.) 2 Sheets-Sheet 2.

J. B. WBN DL. STUMP CUTTING MAGHINE.

No. 559,241. 1 Patented Apr. 28, 1896.

f R N I Q x R W A rTaR/VEr,

ANDREW EGRAHAM. PH010-U1HD.WASHINGTDN. D C.

NITED STATES PATENT OFFICE.

JOHN BIVENDL, OF MILWVAUKEE, WVISCONSIN.

DSTUM P-.CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 559,241, dated April28, 1896.

Application filed August 26, 1895.

To all whom it may concern.-

Be it known that I, JOHN B. VVENDL, a citizen of the United States,residing at Milwaukee, county of Milwaukee, State of isconsin, haveinvented a certain new and useful Improvement in Stump-Cutting Machines;and I declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit pertains to make and use the same, reference being had to theaccompanying drawings, which form a part of. this specification.

My invention relates to machines for cutting tree-stumps, and relatesmore particularly to an improved deviceadapted to be secured upon theoutside of and adapted to sever the stump above the root, and also toremove the uneven top, so as to obtain from the stump the portion of thesame which is soundand in good condition for use.

My said invention consists in the matters hereinafter described, andpointed out in the appended claims.

In the accompanying drawings, illustrating my invention, Figure l isa'plan view of my improved machine, illustrating the same as secured tothe outside of the stump and in position for operation. Fig. 2 is an endele vation of the same. Fig. 3 is a rear elevation of the same.

Referring by letter to the drawings, A A and A A designate frame-piecesor bars constituting a rectangular frame and for attachment to theoutside of the stumps. These frame-pieces are adj ustably securedtogether in any desired manner, conveniently in the manner shown in thedrawings, in which frame-pieces or bars A A are provided with slots orapertures a a for the reception of the ends of the bars A A, as shownmore particularly in Fig. 1. The bars A A are provided with notches aor, adapted for engagement with the margins of the apertures a a in theframe-pieces A A. By this construction the rectangular frame is renderedadjustable and may be readily adjusted so as to fit closely to theoutside of stumps of different diameters, it being only necessary ineffecting such adjustment to adjust the frame pieces A A so as to restagainst opposite sides Serial No. 560,624. (No model.)

of the stump and then to insert the notched ends of the frame-pieces A Ainto the proper apertures a a to enable said frame-pieces A A to engagewith the sides of the stump. The frame-pieces A A and A A will thus beheld in their adjusted positions by the engagement of the notched endsof the frame-.

pieces A A within the apertures in the other frame-pieces.

1 Suitable spikes or bolts B B are passed through apertures in theframe-pieces A A and adapted to be driven into the sides of the stump, asimilar spike orbolt B being passed through the central part of one ofthe framepieces or bars A, and a suitable screw B is passed throughthe'central part of the opposite bar A and is provided with a head I)for engagement with a suitable tool. In securing the rectangular frameto a stump the frame is first adjusted, as before described. The spikesor bolts B B are then driven into the stump, the spike or bolt B thensimilarly driven into the stump, and the screw orbolt B is then operatedand forced into the opposite side of the stump, thereby firmly securingthe frame in position.

The extremities of the frame-pieces A A are notched, as at a 01. for thereception of horizontal bars 0 and O, which latter bar is notched alongone edge, as at c c, in the manner shown more particularly in Fig. 3.Bolts or pins 0 c and c c serve, respectively, to hold the bars 0 and Oin engagement with the bars A A in the manner shown. In adjusting theframe upon the stump the frame-pieces A A are moved upon the bars 0 andG into position to engage with the sides of the stump, and the bolts orpins 0 c are then inserted in the ends of said frame-pieces A A andengaged with appropriate ones of the notches c c in the bar 0 so as tosecure said bars in their adjusted position upon the rectangular frame.

Upon opposite ends of the bars 0 and C are supported suitablecarrying-fram es or guides, each of which conveniently consists of twohorizontal and parallel bars D 'D, which are secured to the ends of thebars 0 and O in any convenient manner, as by means of pins or bolts d d.

Suitable yoke-pieces D D connect the ends of each pair of the bars D Din the manner shown more particularly in Fig. 1, and a horizontalscrew-threaded shaft D is revolubly j ournaled in bearings 61 d in saidyoke-pieces.

A suitable standard E, which may be constructed in any convenientmanner, is mounted upon each pair of the bars D D, and has an operativeengagement at its lower part with the horizontal screw-threaded shaft Das at e.

Bearings E E are provided upon the upper ends of the standards E E, andin said bearings are j ournaled suitable shafts e e, carryin g suitablepulleys F F, over which is stretched a band-saw G. Upon one of theshafts e is provided an actuating-pulley H, over which a belt h istrained, said belt leading to the driving mechanism upon theactuating-machine.

Upon the front end of one pair of bars D D is provided a suitablestandard I, having a bearing 11 in its upper end, in which is journaleda shaft 2". Upon the shaft 2" is provided a sprocket-wheel l and ahand-wheel 1 the former being connected by a sprocket-chain i with asprocket-Wheel J, secured to the screw-shaft D A similar sprocket-wheelJ is provided upon the other screw-shaft D and operatively connectedwith the wheel J by means of a sprocket-chain J As shown in thedrawings, a sprocket-wheel K is conveniently provided upon the shaft z",and leads to the actuating mechanism.

It follows from the foregoing construction that motion being imparted tothe pulley H by means of the belt h the shaft 6 will be rotated,together with the pulley F thereon, thus actuating the saw G and theother pulley F, over which said saw is trained.

In beginning the operation of cutting a stump the carriages or standardsin which the saw-carrying pulleys are mounted occupy a position such asshown in the drawings in Figs. 1 and 2, and by operating the hand wheelJ 2 the workman may readily advance or retract said standards orcarriages at will, rotary motion being communicated by means of thechain gearing to the screws D D and thus adjusting the standards E Eupon the longitudinal bars D D in an obvious manner. These bars D D thusconstitute guides upon which the saw-carryin g standards may be adjusted.

As shown more particularly in Figs. 2 and 3, the diameter of thesaw-pulleys is made such that the distance between the two horizontalbars of the band-saw will be less than the ordinary or average height ofthe stumps, so that as the saw is advanced in the manner described itwill operate to simultaneously sever the stump just above the root andto remove the uneven upper end of the stump.

By means of the hand-wheel the operator may advance the saw more or lessrapidly as desired, so as to cut through the stump as rapidly as thecharacter of the work will warrant.

My improved machine may, by making the framework of tubing, be madesufficiently light to enable it to be readily transported from place toplace and readily readjusted upon the stumps to be out.

By means of my improved machine the stumps remaining upon timber land,after the trees have been felled, may be readily, rapidly, andeconomically cut, so as to enable the sound parts of said stumps to beutilized for the manufacture of shin gles,staves, and other smallarticles, and by the described construc tion the operator is enabled tosimultaneously cut the stump from the root and the uneven top from thegood part of the stump.

By making the supporting-frame adjustable, as described, the machine maybe readily secured to stumps greatly difiering in size.

Various modifications or alterations may be made in the details ofconstruction without departing from my original invention, and I wouldhave it understood that my said invention contemplates the use of aframe of any desired construction adapted to be secured to the outsideof a stump and any kind of driving mechanism and any desired form of sawor saws for operatively engaging with the stump.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is-

1. A stump-cuttin g machine comprising the adjustable rectangular frame,the horizontal guides, the standards adjustable thereon, thesaw-carrying pulleys, the band-saw carried thereby, and suitablemechanism actuated by the driving mechanism for automatically andsimultaneously adjusting both of said standards so as to advance orretract the saw, substantially as described.

2. A stump-cuttin g machine comprising the adjustable rectangular frame,the horizontal guides, the standards adjustable thereon, thesaw-carrying pulleys, the band-saw carried thereby, the screw-shaftsengaging respectively with said standards and means for impartingcoincident rotation to both of said screw-shafts, substantially asdescribed.

3. A stump-cutting machine comprisin g the adjustable rectangular frame,the horizontal guides, the standards adj ustc ble thereon, thesaw-carrying pulleys, the band-saw carried thereby, the screw-shaftsengaging respectively with said standards, and carrying sprocket wheelsoperatively connected to gether, and a hand-wheel mounted upon the frameand having an operative connection with one of said screw-shafts,substantially as described.

t. A stump-cutting machine comprising the adjustable rectangular frame,the horizontal guides thereon, the standards adjustable on said guides,the screw shafts engaged respectively with said standards, and carrying-Wheel upon one of said screw-shafts, substanpulleys mounted upon saidstandards, abandtially as described. 10 saw carried thereby,sprocket-Wheels upon In testimony whereof I sign this specificasaidscrew-shafts connected by a sprocket tion in the presence of twoWitnesses.

chain, a fixed standard upon the frame, a JOHN B. WENDL. hand-whee1journaledthere0n,andasprocket- Vitnesses: wheel actuated by saidhand-Wheel, and hav- JOHN E. \VILEs,

ing an operative connection with a sprocket- M. M. VVILEs.

